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Isomers formed by restricted rotation
Pharmaceutical Organic Chemistry Pharmacist Competitive Exams
Q. Isomers formed by restricted rotation
Ans → rotamers
Explanation →
This question is taken from the test/quiz post: one liner| organic| B.pharmacy| Pharmacy one liners |organic chemistry| B.pharmacy file-6 - attemp/practice
More oneliners in - one liner| organic| B.pharmacy| Pharmacy one liners |organic chemistry| B.pharmacy file-6
Q. An instrument used to measure the amount of rotation of plane polarized light by a compound, generally prepared in a solution
Ans → polarimeter
Explanation →
Q. A group that is used to protect a functional group from unwanted reactions. After application the protecting group can be removed to reveal the original functional group.
Ans → protecting group
Explanation →
Q. An equimolar mixture of the two enantiomeric isomers of a compound.
Ans → racemic mixture
Explanation →
Q. A a term applied to an atom or molecule having one or more free valencies.
Ans → radical
Explanation →
Q. A chemical processes in which the proportion of more electronegative substituents is decreased, or the charge is made more negative, or the oxidation number is lowered.
Ans → reduction
Explanation →
Q. The process of separation of a racemate into its two enantiomers by means of some chiral agency.
Ans → resolution
Explanation →
Q. The representation of a compound by two or more canonical structures in which the valence electrons are rearranged to give structures of similar probability.
Ans → resonance
Explanation →
Q. A process in which the forward reaction can reach an equilibrium with the reverse reaction.
Ans → reversible process
Explanation →
Q. A formal non-ambiguous, nomenclature system for the assignment of absolute configuration of structure to chiral atoms, using the Cahn, Ingold and Prelog priority rules.
Ans → R,S convention
Explanation →
Q. The term given to organic molecules which contain no multiple bonds.
Ans → saturated
Explanation →
Q. The sideways projection of a carbon-carbon single bond and the attached substituents.
Ans → sawhorse projection
Explanation →
Q. An instrument that measures the degree of absorption (or emission) of electromagnetic radiation by a substance.
Ans → spectrophotometer
Explanation →
More one-liners in - Pharmaceutical Organic Chemistry
Q. Name the term that refers to a nonpolar molecule or portion of a molecule not capable of strong attraction to water molecules
Ans → hydrophobic
Explanation →
Q. Anti-inflammatory agents that are non-steroidal in nature. In addition to anti-inflammatory actions, they have analgesic, antipyretic, and platelet-inhibitory actions
Ans → Aspirin
Explanation →
Q. An instrument used to measure the amount of rotation of plane polarized light by a compound, generally prepared in a solution
Ans → polarimeter
Explanation →
Q. The phospholipid that produces second messengers in hormonal action
Ans → Phosphatidylinositol
Explanation →
Q. Name the compound with the greatest standard free energy.
Ans → Phosphoenolpyruvate
Explanation →
Q. Surfactant (or a mixture containing one or more surfactants) having cleaning properties in dilute solutions
Ans → detergent
Explanation →
Q. Lipid molecules with attached sugars that are found as components of gram-negative outer membranes
Ans → lipopolysaccharide
Explanation →
Q. Biological molecules, such as DNA and RNA, composed of a nitrogen base, a pentose sugar, and a phosphate group.
Ans → Nucleic Acids
Explanation →
Q. Concentration of a drug that must be achieved in the plasma before any desired therapeutic or pharmacological effect can be obtained.
Ans → minimum effective plasma concentration
Explanation →
Q. Galactosemia is mostly due to the deficiency of the enzyme
Ans → Galactose 1-phosphate uridyltransferase
Explanation →
Q. Solid material that exists at least in two different molecular arrangements, i.e., distinctly different crystal species.
Ans → polymorph
Explanation →
Q. A solution property that changes if the concentration of that solution changes.
Ans → colligative property
Explanation →
Q. Name a differential staining technique that distinguishes bacteria based upon their cell wall structure
Ans → Gram stain procedure
Explanation →
Q. Scaffold placed into narrowed, diseased vessels (mainly coronary arteries) or a device implanted in a vessel used to help keep it open.
Ans → stent
Explanation →
Q. the method for producing gasoline from heavy petroleum distillates.
Ans → catalytic cracking
Explanation →
Q. Process that occurs when the vapor pressure of the saturated aqueous solution of a substance is less than the vapor pressure of water in the ambient air.
Ans → deliquescence
Explanation →
Q. The interval of growth when cells divide exponentially; also known as the exponential growth phase
Ans → log phase
Explanation →
Q. A chemical processes in which the proportion of more electronegative substituents is decreased, or the charge is made more negative, or the oxidation number is lowered.
Ans → reduction
Explanation →
Q. The element involved in the protection of cells against the damage of H2O2 and other free radicals
Ans → Selenium
Explanation →
Q. This refers to protozoans that consume food particles through phagoctytosis
Ans → holozoic
Explanation →
Q. The number of base pairs present in each turn (pitch) of B-form of DNA helix
Ans → 10
Explanation →
Q. The disorder in which the patients have an irresistible urge to bite their fingers and lips is
Ans → Lesch-Nyhan syndrome
Explanation →
Q. Refers to a nonpolar molecule or portion of a molecule not capable of strong attraction to water molecules
Ans → hydrophobic
Explanation →
Q. The third stage of acute disease, during which the number of pathogens present in the host is greatest and the signs and symptoms of disease are most severe
Ans → period of illness
Explanation →
Q. A type of endocytosis in which extracellular ligands are targeted to specific cells through their binding to specific cell surface receptors
Ans → receptor-mediated endocytosis
Explanation →
Q. Formulation in which individual doses of a granulated dosage form are separated
Ans → divided granule
Explanation →
Q. The distortion of a light wave due to interaction with another wave
Ans → interference
Explanation →